English — Forum #723 (Page 31/642)

1. Ugh, why has the casual version turned into a mess? The whole text is either full of eggs or egg patterns. . . . - HCBBS Forum
2. The section has been taken over by ads - HCBBS Forum
3. Work or \"occupational disease\"” - HCBBS Forum
4. Coking WEILAN special valve orifice plate - HCBBS Forum
5. After connecting the pumps in the fan hydraulic oil station, the pressure in the main pipe is lower than when using a single pump - HCBBS Forum
6. Aspen simulation of safety relief issues - HCBBS Forum
7. Using diammonium powder instead of monammonium in the production of compound fertilizers - HCBBS Forum
8. As the feed rate increases, the pressure at the top of the distillation tower rises - HCBBS Forum
9. Differences between ASCO’s solenoid valves 531 and 551 - HCBBS Forum
10. The difference between hardware fault tolerance HFT and redundancy! Please, experts! - HCBBS Forum
11. Daily Safety and Fire Prevention Question (12.27) - HCBBS Forum
12. Oilfield wastewater treatment - HCBBS Forum
13. 【Haichuan Discussion】Pay attention to Fog Mai; post rationally, and discuss its origins, impacts, and ways of addressing it. - HCBBS Forum
14. Is the design of pressure vessels taking into account the effect of the head pressure (water head) due to the liquid column height? - HCBBS Forum
15. The Rockets have to win today! ! - HCBBS Forum
16. Is there a uniform requirement for the margin against cavitation with regard to the safety margin? How can the safety margin be determined accurately? - HCBBS Forum
17. What medications and equipment are available in the emergency medicine kit in the chemical processing workshop? - HCBBS Forum
18. Leakage at port G of the Corrigan liquid oxygen pump - HCBBS Forum
19. The National Development and Reform Commission is investigating CNPC; plans for oil and gas reform are being formulated at full speed - HCBBS Forum
20. The equipment noise is said to not exceed 85 decibels according to national standards; where is the measurement taken? - HCBBS Forum
21. Weekly Best: Harden named Northern King; KD and Paul from the Wizards are both nominated - HCBBS Forum
22. Summary of the Installation of Emergency Flushing and Eye-Washing Devices in the Finished Product Tank Area - HCBBS Forum
23. Upgrading to Grade 10 - HCBBS Forum
24. 【Equipment Reliability Improvement】Using the skin effect electric heating in place of steam heating to reduce benzene vapor leakage - HCBBS Forum
25. Can samples be taken directly from the high-level sampling point of the C4 unit? - HCBBS Forum
26. Lijiang Spring Festival Tour - HCBBS Forum
27. The issue of estimating the weight of equipment in design institutes - HCBBS Forum
28. Premier League – Magical Wing scores a last-minute goal; Liverpool wins derby, 6 points behind the leader - HCBBS Forum
29. Ranking of price changes for commodities such as methanol - HCBBS Forum
30. Yang Huaning: Some people want coal rather than laws; they want money rather than their lives - HCBBS Forum
31. How to calculate the flow rate under superheated steam conditions? - HCBBS Forum
32. Help me out - HCBBS Forum
33. The nine-day cold period begins today; let’s enjoy the folk songs related to it from various places! - HCBBS Forum
34. What category is the fire hazard associated with ammonia nitrogen in the ammonia nitrogen stripping room classified as? A? B A? B B? ? ? - HCBBS Forum
35. Excuse me. - HCBBS Forum
36. Issues regarding the installation of pressure gauge ports and safety valve ports on tall vertical gas storage tanks - HCBBS Forum
37. Thermal conductivity of enamel - HCBBS Forum
38. A small business that operates with integrity, offering no credit sales…… - HCBBS Forum
39. Which parts of the equipment in the purification workshop need to be protected from freezing after parking over winter - HCBBS Forum
40. What are the advantages and disadvantages of using only trisodium phosphate to control the quality of the boiler water in a drum boiler? - HCBBS Forum
41. Pool anti-corrosion - HCBBS Forum
42. Issues with the hot standby heat exchangers and fans in chimneys after desulfurization and denitrification of coke oven gas - HCBBS Forum
43. Pool anti-corrosion - HCBBS Forum
44. Regarding the selection of level gauges - HCBBS Forum
45. On the selection of minor specialties in chemical engineering design - HCBBS Forum
46. I would like to ask whether the structure on the pipeline in the figure is reasonable. - HCBBS Forum
47. Discovered the benefits of smoking: it can help reduce smog - HCBBS Forum
48. Are there injection pumps used in chemical plants? - HCBBS Forum
49. Pilot project implementation platform - HCBBS Forum
50. 1-(4-**yl)-4-(4-hydroxyphenyl)piperazine - HCBBS Forum
51. Let’s talk about the automatic condensate pump. - HCBBS Forum
52. Can the pressure difference in the balance pipe not meet the startup conditions when starting the hydrogen circulation compressor? - HCBBS Forum
53. Sign-in record post dated December 19, 2016 - HCBBS Forum
54. Did you receive flowers for Christmas? - HCBBS Forum
55. Knowledge on solenoid valve selection – please keep adding more useful information to help everyone make better choices* - HCBBS Forum
56. Is it necessary to use a filter when loading hydrogenated refined diesel? - HCBBS Forum
57. EJA438 uses a domestically produced 375 controller for circuit testing - HCBBS Forum
58. The construction drawings specify requirements for gaskets and bolts; could someone please explain this? - HCBBS Forum
59. What methods do you all use to download software? ? ? ? - HCBBS Forum
60. How can we simulate the boiling points of substances at different pressures (mainly salt solutions)? - HCBBS Forum
61. 4 - HCBBS Forum
62. Desulfurization cost - HCBBS Forum
63. 1131 Configuration Software - HCBBS Forum
64. Why aren’t there categories for mechanical and electrical engineering for Level 1 and Level 2 construction engineers? - HCBBS Forum
65. Two and a half years since the start of operation of the waste acid regeneration system, near the acid pipe under the second absorption tank - HCBBS Forum
66. Free subscription to the electronic version of the journal “Coal Processing and Comprehensive Utilization” - HCBBS Forum
67. Newly added fluorine chemical enterprises - HCBBS Forum
68. Lubricating oil system - HCBBS Forum
69. Environmental Protection Daily Question (12.23) - HCBBS Forum
70. Understanding of the engineering specifications for pipe fittings? - HCBBS Forum
71. 【Daily Question】Chemical Engineering Principles 490: Phosphates (December 26) - HCBBS Forum
72. Issues with the material of the propylene oxide storage tank shell - HCBBS Forum
73. The state of the water extracted by liquid-liquid extraction and gas lift entering the gas lift tower - HCBBS Forum
74. Will fertilizer prices rise? These factors are key... - HCBBS Forum
75. 2016-12-20 True or False Questions - HCBBS Forum
76. There’s a question that remains unsolved - HCBBS Forum
77. Is a valve needed at the outlet of the variable frequency pump? - HCBBS Forum
78. It already exists - HCBBS Forum
79. inside - HCBBS Forum
80. How to fix galvanized pipes in explosion-proof areas where drilling is not allowed - HCBBS Forum
81. May the vent of storage tanks for Class A highly oxidizing liquids (such as hydrogen peroxide) be connected directly to the atmosphere? ? If that doesn’t work, meet wh... - HCBBS Forum
82. More than half of the provinces across the country are affected by haze” - HCBBS Forum
83. Hot water system - HCBBS Forum
84. I would like to ask everyone how to calculate the temperature rise of air passing through a centrifugal fan? - HCBBS Forum
85. UASB high-efficiency biological bacteria - HCBBS Forum
86. Catalytic stop non-purified air - HCBBS Forum
87. Dual-alkali desulfurization process - HCBBS Forum
88. ASPEN7.2 includes gasification simulation built-in - HCBBS Forum
89. There’s a bug in the Flower Wheel; am I going to tell you? - HCBBS Forum
90. Coating ink additives - HCBBS Forum
91. It is recommended to allow direct conversion of wealth into Little Red Flowers - HCBBS Forum
92. What type are the steam-traced drain valves in refinery units? How does it work? - HCBBS Forum
93. The alcohol ether market is showing steady upward momentum - HCBBS Forum
94. Event Description: Interactive Session on Occupational Health and Safety Management--03 - HCBBS Forum
95. Problems with ammonia-based desulfurization concentration tanks - HCBBS Forum
96. Test questions - HCBBS Forum
97. Daily Water Treatment Question (12.22) - HCBBS Forum
98. In saddle-shaped ceramics used in regenerative incinerators, the color of the ceramic turns green after being used for a period of time - HCBBS Forum
99. Circulating water treatment agents - HCBBS Forum
100. Safety and Firefighting Puzzles (12.20) - HCBBS Forum